Stakeholders

Function : Designer

中国建筑技术集团有限公司

北京市朝阳区北三环东路30号， 电话010-64693425

 http://cbtgc.iwingchina.com.cn/


As a design and consulting company of green building, China Building Technology Group Co., Ltd is responsible for the design, comprehensive assessment and overall targets of the project; feasible research and analysis for the green building technical sche

Contracting method

General Contractor

Owner approach of sustainability

In order to improve the social benefit, economic benefit and environmental benefit, and achieve the target of energy-saving and energy efficiency, this project focuses on the practice and promotion, researches practical green ecological technology to protect the ecological environment and achieve sustainable development.

Architectural description

Key factors of this project:
(1) The thermal insulation of the external wall is made of composite foam cement panel (Ⅱtype) and cement base compound insulation mortar(L type). The external window is made of 5+19Ar+5 thermal insulation aluminum alloy hollow glass. The south window was shaded with external sunshade. Energy-saving materials are applied as envelope for roof and overhead floor. The total energy consumption of the building is up to 80% of the demand of the standard of DGJ32/J 71-2008.
(2) By using source side ledger of ground source heat pump system, soil is applied as energy source to supply heating or cooling to the houses and provide domestic hot water.
(3) Rain water was stored and recycled for irrigating, street flushing, car washing, landscape water filling and underground garage flushing.

If you had to do it again?

This project is designed as high-level housing estate building with heating system in winter, cooling system in summer and domestic hot water system all over the year. The cooling and heating system take well use of shallow geothermal energy to implement changeable operation, energy saving optimization, separately regulation and system maintenance.
Solution: Ground source water was supplied to each house by using ground source heat pump. During the period of project design, analysis and research of ground source heat pump have been completed. By considering the advantages and benefits of each projects, centralized ground source heat pump system for high-rise buildings was selected as the application to supply heating for winter, supply cooling for summer and supply domestic hot water all over the year.

Building users opinion

The residents in this housing estate feel satisfied to the living environment, lighting environment, ventilation effect and indoor air quality.

Energy consumption

• Primary energy need : 84,60 kWhpe/m².年
• Primary energy need for standard building : 87,19 kWhpe/m².年

Calculation method : Primary energy needs

Breakdown for energy consumption :

HVAC:63.7%
lighting/plug:14.1%
power equipment: 12%
others:10.2%

Envelope performance

• Envelope U-Value : 1,01 W.m^-2.K^-1
More information :

The thermal insulation of the external wall is made of composite foam cement panel (Ⅱtype) and cement base compound insulation mortar(L type). The external window is made of 5+19Ar+5 thermal insulation aluminum alloy hollow glass. The south window was shaded with external sunshade.

• Building Compactness Coefficient : 0,33

Systems

Heating system :
• Geothermal heat pump
• Low temperature floor heating
Hot water system :
• Heat pump
Cooling system :
• Geothermal heat pump
• Fan coil
Ventilation system :
• Natural ventilation
• Double flow heat exchanger
Renewable systems :
• Heat pump on geothermal pile
• Renewable energy production : 88,00 ％
Other information on HVAC :

The amount of fresh air is calculated based on the air change rate. Every house applied a fresh air ventilator in the kitchen. According to the supply distance and fictional resistance, fresh air ventilator was equipped with total heat exchanger.

100% residents in the housing estate use ground source heat pump system for heating/air conditioning and providing domestic hot water.

Solutions enhancing nature free gains :

The project nearly faces to the source and the nearest horizontal line of sight of the building is 38.39 m. Each unit has at least one room meets the sunshine standards of living space. For the houses which have more than four rooms, at least two rooms me

Smart Building

BMS :

Intercom system, emergency alarm and intrusion alarm system, vehicle access control system, building automation control system, access control and management system.

Users’ opinion on the Smart Building functions : The management system of this project is set up comprehensive and made household convenient, efficient and safe.

Urban environment

The surroundings near the house estate are equipped with public facilities including: business area, schools, kindergarten, hospital, cultural plaza, bank, petrol station and so on.

Land plot area

Land plot area : 18 909,00 m²

Green space

Green space : 8 017,11

Parking spaces

The building has 384 parking spaces, including 377 spaces underground and 7 spaces above ground with a total area of 13520.18 m2.

Product

Shulian aluminum alloy shutter



江苏能高节能科技有限公司

江苏省启东市滨海工业园明珠路66号，[email protected]

 http://www.jsng.com.cn


Product category :

Adjustable sunshade was installed on the south side windows in the housing estate. Shulian aluminum alloy shutter was planned to be used to make the sunshade in harmony with the building external façade, reduce the radiant heat gain and avoid sunlight shining into the indoor space.

The product is functional in sunshade, safe proof, sound proof, against severe weather, moisturizing, thermal insulation and inhibition of water.

Construction and exploitation costs

• Renewable energy systems cost : 18 902 600,00 ¥
• Total cost of the building : 1 460 000 000 ¥

Energy bill

• Forecasted energy bill/year : 479 500,00 ¥

Real energy cost/m2 : 6.34

Real energy cost/Dwelling : 1063.19

Building Environmental Quality

Water management

• Consumption from water network : 91 167,90 m³
• Consumption of harvested rainwater : 9 670,30 m³

Water Self Sufficiency Index : 0.1

Water Consumption/m2 : 1.21

Water Consumption/Dwelling : 202.15

In this project, rain water was stored and recycled to reuse in other systems. Meanwhile, a variety of measures were applied to increase rainwater infiltration and the surplus rain water will be transport to municipal rainwater pipe network to ensure the drainage of surplus water. Collective water flows into the reservoir and then flows into the folded plate after flocculation in the inclined plate sedimentation tank. Rain storage contains a variety of types such as rain on the roof, on the floor, on the grassland. This project will collect compound rain water from different place for irrigating, street flushing, car washing, landscape water filling and underground garage flushing.

Comfort

Health & comfort : Average indoor air temperature in January: 19oC
Average humidity in January: 60%
Average indoor air temperature in July: 26 oC
Average humidity in July: 60%
Fan coil unit (FCU) and fresh air ventilation system is applied in houses and the FCU

Acoustic comfort : Noisy mechanical room such as heat pump room, water pump room and electricity generation room is arranged in the basement to reduce the operational influence to residents. Air conditioning machines, fresh air ventilators and all of the air hoses are equipped with complex muffler or bend muffler. Pipes directly connected to the operational pipeline are hosted with damping applications. Besides using low-noise ventilator, each machine is equipped with vibration pedestal and installed flexible pipe at the air inlet and outlet pipe.

GHG emissions

• GHG in use : 9,33 KgCO₂/m²/年
Methodology used :

CECS374：2014

• Building lifetime : 50,00 年